Physics, 04.07.2019 23:30 Unkn0wn3815
For a point source at the origin, the three-dimensional neutron diffusion equation be 15.4.4 comes -dv2(r)k2d¢(r) = q8(r) apply a three-dimensional fourier transform. solve the transformed equation. trans form the solution back into r-space hint the following equations are useful 1. vf(r)eikrdr -kl2f(r)ekr d? r (2)e 1 (2t)e p(r)eikr d2r (2n)e 1 2. let d(k) -ar 1 4t 3. the fourier transform of f(r) 1s (2m)2+a2
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Physics, 22.06.2019 08:40
Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
Answers: 1
Physics, 22.06.2019 09:30
(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
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Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 22.06.2019 11:50
The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?
Answers: 3
For a point source at the origin, the three-dimensional neutron diffusion equation be 15.4.4 comes -...
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